linux-kernel - [PATCH] arch/tile: add some more VMSPLIT options and use consistent naming

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Message-Id: <201103011934.p21JYesx010311@farm-0010.internal.tilera.com>
Date:	Mon, 28 Feb 2011 16:01:09 -0500
From:	Chris Metcalf <cmetcalf@...era.com>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH] arch/tile: add some more VMSPLIT options and use consistent naming

This renames 3G_OPT to 2_75G, and adds 2_5G and 2_25G.

For memory-intensive applications that are also network-buffer
intensive it can be helpful to be able to tune the virtual address
of the start of kernel memory.

Signed-off-by: Chris Metcalf <cmetcalf@...era.com>
---
 arch/tile/Kconfig |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 92f7ea0..eed0fc5 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -234,8 +234,12 @@ choice
 		bool "3.5G/0.5G user/kernel split"
 	config VMSPLIT_3G
 		bool "3G/1G user/kernel split"
-	config VMSPLIT_3G_OPT
-		bool "3G/1G user/kernel split (for full 1G low memory)"
+	config VMSPLIT_2_75G
+		bool "2.75G/1.25G user/kernel split (for full 1G low memory)"
+	config VMSPLIT_2_5G
+		bool "2.5G/1.5G user/kernel split"
+	config VMSPLIT_2_25G
+		bool "2.25G/1.75G user/kernel split"
 	config VMSPLIT_2G
 		bool "2G/2G user/kernel split"
 	config VMSPLIT_1G
@@ -246,7 +250,9 @@ config PAGE_OFFSET
 	hex
 	default 0xF0000000 if VMSPLIT_3_75G
 	default 0xE0000000 if VMSPLIT_3_5G
-	default 0xB0000000 if VMSPLIT_3G_OPT
+	default 0xB0000000 if VMSPLIT_2_75G
+	default 0xA0000000 if VMSPLIT_2_5G
+	default 0x90000000 if VMSPLIT_2_25G
 	default 0x80000000 if VMSPLIT_2G
 	default 0x40000000 if VMSPLIT_1G
 	default 0xC0000000
-- 
1.6.5.2

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